Voice Assistant systems like Alexa, Echo Dot, Siri, Google Assistants, and Cortana are widely used for the ease of being hands-free and being controlled through voice commands. Voice assistants utilize speech recognition, speech identification, and other machine learning algorithms to perform a task, connecting smart home devices, and smart vehicles, searching the web and even playing a game. The components of Voice assistants are exposed to attackers to gain unauthorized control through varying methods of injecting audio, speech, and inaudible voice commands. The attacks through the voice commands pose security and data privacy risks that need urgent attention. In this paper, different security challenges, and vulnerabilities in the Voice assistants are outlined. The study provides a brief overview of possible solutions to minimize the security and privacy risks associated with using Voice Assistants.